﻿using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using NetFrameworkExtensions.Collections;

namespace NetFrameworkExtensions.DataLayer
{
  [Serializable]
  public class OrderingFilter : CustomList<OrderingStep>
  {
    protected override void Check(OrderingStep item)
    {
      base.Check(item);
      if (item == null)
        throw new ArgumentNullException("item");
    }
  }
}
